20933416 has 32 divisors (see below), whose sum is σ = 46074240. Its totient is φ = 8728128.

The previous prime is 20933399. The next prime is 20933449. The reversal of 20933416 is 61433902.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2980 + ... + 7123.

It is an arithmetic number, because the mean of its divisors is an integer number (1439820).

Almost surely, 2^20933416 is an apocalyptic number.

It is an amenable number.

20933416 is an abundant number, since it is smaller than the sum of its proper divisors (25140824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20933416 is a wasteful number, since it uses less digits than its factorization.

20933416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10153 (or 10149 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 20933416 is about 4575.3050171546. The cubic root of 20933416 is about 275.6005212877.

The spelling of 20933416 in words is "twenty million, nine hundred thirty-three thousand, four hundred sixteen".